Graph Tech Ratio Machine Heads Electric Guitar 3x3 Contemporary 2Pin PRN-2311-N0 3x3 Contemporary Electric Guitar Tuners Color: Nickel, Material: Steel - Post Dimensions: 6 x 27.7mm 2 Pin Mounting Spacing: 9.9mm - Bushing Dimensions: 12.8 x 7.8mm - Housing Dimensions: 18.5 x 15 x 9.2 mm Part Number: PRN-2311-N0 Available at Ant Hill Music!